我试图添加到一个可变数组中，但无法弄清楚。将不兼容的数据类型加倍到 id 时引发错误。问题是我如何转换距离并将其存储在我的数组中。
for (int i = 0; i < _getAllLocations.count; i++) {
uscInfo *entity = [_getAllLocations objectAtIndex:i];
NSNumber *numlat=[[NSNumber alloc] initWithDouble:[entity.Latitude doubleValue]];
NSNumber *numlon=[[NSNumber alloc] initWithDouble:[entity.Longitude doubleValue]];
NSLog(@"%d",[_getAllLocations count]);
la=[numlat doubleValue];
lo=[numlon doubleValue];
CLLocation *currentLocation = [[CLLocationalloc]initWithLatitude:lalongitude:lo];////here put your destination point
//NSLog(@"New Location:%@", newLocation);
CLLocationDistance distance = [newLocation distanceFromLocation:currentLocation];
NSLog(@"%@ (%@) %4.0f km from current location",entity.EntityNo, entity.EntityName, distance);
NSLog(@"%@",currentLocation);
我正在尝试将“距离”存储在我的数组“locationDistance”中
感谢您的帮助，我对 iOS 以及一般编程仍然很陌生。